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Letters-`Pcftcnt'l\To; 88,652, dated April 6, 1869.

IMPROVED macminer-0R Ponent@ vvRoUGI-IT-NAILS. ,iwf

The Schedule referred to in these Letters Patent `and` making-partei' the same; i

To all whom tmc/ 1j concern..- f

Be it known that I, HENRY W. MA'lHEmof Deep River, in thecounty of Middlesex, and State of Gonnecticut, have invented ce1-tain new and useful Improvements in Horse-Shoc-Nail Machines; and I do f right angles in the centre.

hereb'y declare that the following .is a fullv andv exact description thereof, reference' being hadto'the accompanying drawings, making part of thisspecitication, in whichv Y Figure l is a side elevation, showing the device for feeding the nail-rod into themachine.

Figure 2, avertical section lin the planeA of line :t x, g. 3.

Figure 3, a side elevation, viewed at right angles t'o iig. 1.

Figure 4, a fragmentary view, representing parts of the anvils'aud hammers, and the chisel in position for severing the nail from the rod.

Like letters of reference indicate corresponding parts in all the iigures. j p

My invention consists in the arrangement and operation of the adj ustable'anvils in relation to the hammers, the said anvils moving up and receding 'alternately, in right-angled directions, to receive the blows of the corresponding hammers, which operatcin direct lines therewith, so as tostrike the rod alternately, at diiierentangles, to form the'nail.

It also consists in` the arrangement of the device for holding the hammers'elevated, and depressing the chisel, in conibination with the anvil, the two acting as shears to sever the nail from the rod; and, also, in

Vthe device for feeding the nail into the machine.

In -the drawingsbars, or braces B B.

These frames are composed of perpendicular bars a the sides, Aand horizontal ones at the top and bottom, which are intersectedby intermediate bars k k', extending diagonally across the frame, and meeting at The adjustable anvils C -C and hammers D D rest in bearings c a., on these diagonalportions of the frame, and at right-angular positions, so that the direction of motion of the anvils will be on a direct line with the in the transverse directionrepeat the'blow, vthus each set alternating the other until a sufficient number of blows has been given to formthe nail.

The cams c l are of such term as to retain one y l anvil and hammer in the retired position a suiicient length of time to allow those in the transverse position to act.

The hammers D `D have friction-rollers Z l, which rest on theperipheries of the cani-wheels zZ ll, from which they receive motion, and springs m ym, which givc force and momentum to their stroke.

After thenail is formed, the cam E, which is providedwith friction-rollers 'f lf, compresses the togglejoint g, thereby expanding the springs h 7i?, which are provided with hooks, formedrattheir lower extremities, that catch in notches t t of the hammers, and hold them elevated, as shown in fig. 4.

\Vhile thc hammers are thus held in the elevated positions, the adjustable knife or chisel F, which has a shank, or extension that' rests up against the cam E, is forced down against the head ofthe n ail, while,

. at the same time, one of the anvils C moves up, comagainst the cutterto sever it from pressing the nail the rod.

The chisel is then'withdrawn by meansV of a spiral l spring, 7:, and the hammers are released to repeat the operation.v p

Apinion n, to which the crank G, or driving-power is attached, gears with a cog-wheel H, 'on shaft p, and to the side of this cogwheel is secured a pinion, q, that gears with cog-wheel I, on shaft o, to which they cam E is secured.

To the shaft pis secured a main cog-wheel K, with which gear pinions r and`s, on shafts t and it, to which the cams o d, operating the hammer, are also connected.

The rod from which. the nails are formed is fed' in .between rollers. L L, as shown in red lines,- having angular grooves e e, by which therod is held in such a position that its. sides are on a plane with the face of the anvils, v j

These rollers lhave bearings ww.

The upper roller has a shaft, or journal-proj ection,

cientlyfhigh that, when it falls back, the spring-panfldof arm c, catching the ratchet-Wheel y, revolves the rollers L L, and draws the rodl into the machine just far enough to form another nail.

The bar N is provided with an adjustable collar and setscrew, i, which may be gauged to adapt the fall of the bar to feed the roda suiiicient distance to produce the required length of nail. x l

rlhe operation of the machine is as follows: \Vhen`the nail-rod isinsertued into the machine, it is hammered into the proper shape bythe uniform action of the corresponding anvils and hammers C D, l

which strike the nail alternately, in right-an 1,nlar

that 44.bearing directions, a sucient number of blows to complete the nail. 'lhis beiugdone, as the cam-wheel E revolves, the hooked springs h h are spread apart, by means of the toggle-joint g, so as to catch under the hammers 'D D, and hold them elevated, while the chisel Fis depressed, as shown in'fig.`4, and the anvil C moves up, forcing the head ofthe nail against the cutter, the anvil and chisel-` coming together in such a manner as to give the nail a shearing-cut, to sever it from the rod. At the same time, the bar N is elevated by cam P, and at the eornpletion of each nail the cam has passed far enough to allow the lbar to fall, and thus revolve the feed-rollers, and draw the rod into'the machine, when the operation is repeated. The nail-rod is kept hot b v a forge, of any suit-able construction, placed as nearly as convenient to the feeding-device.

What I claim as myinvention, and desire to' secure by Letters Patent, is-'- The arrangement of .the reciprocating anvils GC and hammersD D with a device for feeding and supporting themail-rod, substantially as shown and de. scribed.

. Also, the 'combination of the cam E, friction-rolls f f, toggle y, and springs 7i. h, with the chisel F, and reciprocating anvil C, whereby the chisel is' moved vagainst the rod, and held while the nail is severed by 4 the advancing movement of the anvil, substantially as 

